A study has been made of the effect of Alarisa cornuanetis
on 4 populations of Biomphalaria alexandrina, exactly matching control populations in size, number and season of nurture. The observations were made
in a series ofartijicial earth-lined ditches with continuously flowing Nile water.
Q]ıantitative estimation of the densities of the experimental and control populations was made by standard twice a month samplings with a dip net.
Signijicant reductions in density of the experimental populations, as compared to the control populations, were observed. The results suggest that Marisa
cornnuarietis could be of great value as a biological control agent against natural
populations of Biomphalaria alexandrina in Egypt.
Primary Language | English |
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Subjects | Veterinary Surgery |
Journal Section | Research Article |
Authors | |
Publication Date | January 1, 1986 |
Published in Issue | Year 1986 |